16th February 2025

A 19-year-old lady attends hospital with a rash.

A 19-year-old lady attends hospital with a rash. She has been taking amoxicillin for three days, as prescribed by her general practitioner for a sore throat.

On examination, she has an erythematous pharynx with tonsillar exudate and a widespread flat maculopapular rash over her trunk and limbs.

Her temperature is 38.3, and her other observations are normal.

What is the most likely diagnosis?

Select the SINGLE most appropriate option from the list below. Select ONE option only.